GRE Question of the Day (October 5)

Math

Question Discussion & Explanation

Which military branch has the greatest percentage of women who are single and have children under the age of 18?

(A) Army
(B) Navy
(C) Air Force
(D) Marines
(E) It cannot be determined from the information given.

Correct Answer - A - (click and drag your mouse to see the answer)

If a man whose spouse is also military personnel or retired military were to be selected at random, what would the probability be that he was NOT in the Air Force?

(A) 72%
(B) 58%
(C) 42%
(D) 24%
(E) 13%

Correct Answer - B - (click and drag your mouse to see the answer)

Which of the following expressions is equal to the approximate number of women who would have to enlist in the Army to make the fraction of Army personnel who are women equal the fraction of Air Force personnel who are women?
(Assume that the number of men in the Army and the number of men and women in the Air Force remain unchanged from what is shown in the tables above.)

A. (482000−268000)(75000−64000)(482000−268000)(75000−64000)
B. (482000∗64000−268000∗75000)482000(482000∗64000−268000∗75000)482000
C. (482000∗75000−268000∗64000)482000(482000∗75000−268000∗64000)482000
D. 482000∗75000268000482000∗75000268000−64000−64000
E. 482000∗64000268000482000∗64000268000−75000

Correct Answer - E - (click and drag your mouse to see the answer)